Verizon iPhone 4S 64gb. Installed iOS 6 GM and everything seems pretty good and snappy except auto brightness doesn't seem to work. No change in a dark room between on and off. Annoying.
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iPhone Auto Brightness doesn't work
- Thread starter fotomatt1
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Mlrollin91
macrumors G5
Took me a good while, but I think i've found the solution...
Open your multitasking menu, ane make sure that "Passbook" app is closed... Seem to work very well after that, in fact much better than in iOS 5.
HazyCloud
macrumors 68030
I just tested that and it didn't help me. While mine says on, I never see a increase or decrease in brightness. It must be an iOS 6 bug.
How did you "test it"? In iOS 6 the change of brightness is much slower than it was in iOS 5 ( more MacOS - like).
Press power button to put your phone to sleep , cover the light sensor next to the speaker with your thumb (you can cover entire top part of the phone), and wake you phone up, You will see that screen will be very very dim. No uncover it, and use your phone as you would . You will see after few seconds your screen will gain brightness.
HazyCloud
macrumors 68030
What is this power button you speak of? I only have a Sleep/Wake button and the Home button. 🙂 Just kidding.
I just tried what you mentioned and it didn't seem to dim at all. I have my brightness set right under the TN in brightness and the screen never dims. I do however get a random bug that lowers the brightness for long periods of time until I change the brightness via Settings.
This is on an iPhone 5 that was setup as new.